Long, Larry. Long, Nancy <br/><br/>
Computers   Information Technology in perspective/ 
Larry, Long. Nancy, Long 
 - United States of America.  Pearson  2005 
 - 489 p. 
<br/><br/><label>ISBN: </label>0131432354 
<br/><br/><label>LC Class. No.: </label>QA76.9  / .C66 L65 2003